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Equity, Long-Term Incentive Compensation Plans and Non-controlling Interest - Restricted Stock Unit Activities (Details) $ / shares in Units, shares in Thousands, $ in Millions | 3 Months Ended | 6 Months Ended |
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Dec. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2018 $ / shares | Dec. 31, 2019 USD ($) Installment $ / shares shares | Dec. 31, 2018 $ / shares | Jun. 30, 2019 shares
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Maximum number of shares available for grant (in shares) | [1],[2] | 10,695 |  | 10,695 |  | 11,613
Restricted stock units |  |  |  |  |  |
Restricted Stock Units Activity Rollforward |  |  |  |  |  |
Granted (in shares) | [1],[2],[3] |  |  | 942 |  |
Granted adjustments (in shares) | [2] |  |  | (4) |  |
Forfeited (in shares) | [1],[2] |  |  | (20) |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Restricted stock units granted, weighted-average grant date fair value (in dollars per share) | $ / shares |  | $ 171.98 | $ 96.51 | $ 142.75 | $ 117.21 |
Unrecognized stock-based compensation balance | $ |  | $ 192.5 |  | $ 192.5 |  |
Estimated weighted-average amortization period |  |  |  | 1 year 9 months 18 days |  |
Intrinsic value, RSUs | $ |  | $ 467.6 |  | $ 467.6 |  |
Restricted stock unit, Performance-based and Service-based |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Service and performance-based, number of equal vesting installments | Installment |  |  |  | 2 |  |
Restricted stock unit, Performance-based and Service-based | Third anniversary |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Service and performance-based, percentage of equal vesting installments (as a percent) |  |  |  | 50.00% |  |
Restricted stock unit, Performance-based and Service-based | Fourth anniversary |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Service and performance-based, percentage of equal vesting installments (as a percent) |  |  |  | 50.00% |  |
Restricted stock unit, Service-based | Minimum |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Share-based vesting period |  |  |  | 2 years |  |
Restricted stock unit, Service-based | Maximum |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Share-based vesting period |  |  |  | 4 years |  |
Restricted Stock Unit, Market-based and Service-based |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Service and performance-based, number of equal vesting installments | Installment |  |  |  | 3 |  |
Restricted Stock Unit, Market-based and Service-based | Third anniversary |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Service and performance-based, percentage of equal vesting installments (as a percent) |  |  |  | 33.33% |  |
Restricted Stock Unit, Market-based and Service-based | Fourth anniversary |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Service and performance-based, percentage of equal vesting installments (as a percent) |  |  |  | 33.33% |  |
Restricted Stock Unit, Market-based and Service-based | Fifth anniversary |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Service and performance-based, percentage of equal vesting installments (as a percent) |  |  |  | 33.33% |  |
2004 Plan | Restricted stock units |  |  |  |  |  |
Restricted Stock Units Activity Rollforward |  |  |  |  |  |
Outstanding restricted stock units as of June 30, 2019 (in shares) | [4],[5] |  |  | 2,902 |  |
Granted (in shares) | [5],[6] |  |  | 471 |  |
Granted adjustments (in shares) | [5],[6] | (2) |  |  |  |
Vested and released (in shares) | [5] |  |  | (484) |  |
Withheld for taxes (in shares) | [5] |  |  | (242) |  |
Forfeited (in shares) | [5] |  |  | (20) |  |
Outstanding restricted stock units as of December 31, 2019 (in shares) | [4],[5] | 2,625 |  | 2,625 |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Outstanding restricted stock units as of June 30, 2019, weighted-average grant date fair value (in dollars per share) | $ / shares | [4] |  |  | $ 91.84 |  |
Restricted stock units granted, weighted-average grant date fair value (in dollars per share) | $ / shares | [6] |  |  | 142.75 |  |
Restricted stock units granted adjustments, weighted-average grant date fair value (in dollars per share) | $ / shares | [6] | $ 75.46 |  |  |  |
Restricted stock units vested and released, weighted-average grant date fair value (in dollars per share) | $ / shares |  |  |  | 78.15 |  |
Restricted stock units withheld for taxes, weighted-average grant date fair value (in dollars per share) | $ / shares |  |  |  | 78.15 |  |
Restricted stock units forfeited, weighted-average grant date fair value (in dollars per share) | $ / shares |  |  |  | 103.85 |  |
Outstanding restricted stock units as of December 31, 2019, weighted-average grant date fair value (in dollars per share) | $ / shares | [4] | $ 104.68 |  | $ 104.68 |  |
2004 Plan | Restricted stock unit, Performance-based and Service-based |  |  |  |  |  |
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward |  |  |  |  |  |
Maximum number of shares available for grant (in shares) |  | 200 |  | 200 |  |
[1] | No additional stock options, RSUs or other awards will be granted under the Assumed Equity Plans.
[2] | The number of RSUs reflects the application of the award multiplier of 2.0x to calculate the impact of the award on the shares reserved under the 2004 Plan.
[3] | Includes RSUs granted to senior management during the six months ended December 31, 2019 with performance-based vesting criteria (in addition to service-based vesting criteria for any of such RSUs that are deemed to have been earned) (“performance-based RSUs”). This line item includes all such performance-based RSUs granted during the six months ended December 31, 2019 reported at the maximum possible number of shares that may ultimately be issuable if all applicable performance-based criteria are achieved at their maximum levels and all applicable service-based criteria are fully satisfied (0.4 million shares for the six months ended December 31, 2019 reflects the application of the multiplier described above).
[4] | Includes performance-based and market-based RSUs.
[5] | Share numbers reflect actual shares subject to awarded RSUs.
[6] | This line item includes performance-based RSUs granted during the six months ended December 31, 2019 reported at the maximum possible number of shares that may ultimately be issuable if all applicable performance-based criteria are achieved at their maximum levels and all applicable service-based criteria are fully satisfied (0.2 million shares for the six months ended December 31, 2019

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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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